Results 51 to 60 of about 1,030,362 (113)

Identification of random coefficient latent utility models

open access: yesQuantitative Economics, Volume 16, Issue 4, Page 1223-1265, November 2025.
This paper provides nonparametric identification results for random coefficient distributions in perturbed utility models. We cover discrete choice and models of multiple purchases. We establish identification using variation in mean quantities. The results apply even when an analyst observes only aggregate demands but not whether goods are chosen ...
Roy Allen, John Rehbeck
wiley   +1 more source

Unified gross substitutes and inverse isotonicity for equilibrium problems

open access: yesTheoretical Economics, Volume 20, Issue 3, Page 941-971, July 2025.
We introduce a notion of substitutability for correspondences and establish a monotone comparative static result. More precisely, we introduce the notions of unified gross substitutes and nonreversingness and show that if Q:P⇉Q is a supply correspondence defined on a set of prices P, which is a sublattice of RN, and Q satisfies these two properties ...
Alfred Galichon   +2 more
wiley   +1 more source

Existence and multiplicity of solutions for a class of ( p , q ) $(p,q)$ -Kirchhoff system with combined nonlinearities on graphs

open access: yesBoundary Value Problems
By using the well-known mountain-pass theorem and Ekeland’s variational principle, we prove that there exist at least two fully nontrivial solutions for a ( p , q ) $(p,q)$ -Kirchhoff elliptic system with the Dirichlet boundary conditions and ...
Zhangyi Yu, Junping Xie, Xingyong Zhang
doaj   +1 more source

The impact of bureaucracy and managerialism on relationship‐based practise: A mixed methods study of frontline social work in Northern Ireland

open access: yesSocial Policy &Administration, Volume 59, Issue 3, Page 438-453, May 2025.
Abstract Combining quantitative data from a national survey (n = 252) with qualitative interviews with frontline social workers (n = 16), this manuscript examines the ways in which bureaucracy and managerialism has impacted social work in Northern Ireland, with specific attention to relationship‐based practise.
Katheryn Margaret Pascoe
wiley   +1 more source

Inclusions in general spaces: Hoelder stability, solution schemes and Ekeland's principle [PDF]

open access: yes, 2009
We present two basic lemmas on exact and approximate solutions of inclusions and equations in general spaces. Its applications involve Ekeland's principle, characterize calmness, lower semicontinuity and the Aubin property of solution sets in some ...
Kummer, Bernd
core   +1 more source

The Future of Artificial Intelligence in Mental Health Nursing Practice: An Integrative Review

open access: yesInternational Journal of Mental Health Nursing, Volume 34, Issue 1, February 2025.
ABSTRACT Artificial intelligence (AI) has been increasingly used in delivering mental healthcare worldwide. Within this context, the traditional role of mental health nurses has been changed and challenged by AI‐powered cutting‐edge technologies emerging in clinical practice. The aim of this integrative review is to identify and synthesise the evidence
Lucian H. Milasan, Daniel Scott‐Purdy
wiley   +1 more source

Ekeland's variational principle for vector optimization with variable ordering structure [PDF]

open access: yes, 2014
There are many generalizations of Ekeland's variational principle for vector optimization problems with fixed ordering structures, i.e., ordering cones.
Truong, Bao Q.   +3 more
core  

Uniqueness of optimal policies as a generic property of discounted Markov decision processes: Ekeland's variational principle approach [PDF]

open access: yes, 2016
summary:Many examples in optimization, ranging from Linear Programming to Markov Decision Processes (MDPs), present more than one optimal solution. The study of this non-uniqueness is of great mathematical interest. In this paper the authors show that in
Lemus-Rodríguez, Enrique   +5 more
core   +1 more source

Professional perspectives on characteristics of legitimacy in court‐based mediation

open access: yesFamily Court Review, Volume 63, Issue 1, Page 138-154, January 2025.
Abstract In Norway, court‐based mediation involves judges, lawyers, and psychologists working as a mediation team to bring settlement and avoid litigation. This article reports from a qualitative study with twenty‐two judges, psychologists, and lawyers from four district courts.
Eva Cathrine Lyngstad, Ingunn Skjesol
wiley   +1 more source

Time‐inconsistent contract theory

open access: yesMathematical Finance, Volume 34, Issue 3, Page 1022-1085, July 2024.
Abstract This paper investigates the moral hazard problem in finite horizon with both continuous and lump‐sum payments, involving a time‐inconsistent sophisticated agent and a standard utility maximizer principal: Building upon the so‐called dynamic programming approach in Cvitanić et al.
Camilo Hernández, Dylan Possamaï
wiley   +1 more source

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